Home / 4,882.98-6,735.78-2,891.60

Finding the Fourth Proportional to 4,882.98, 6,735.78 and 2,891.60

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Solution

The fourth proportional to 4,882.98, 6,735.78 and 2,891.60 is: 3,988.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,882.98 : 6,735.78 = 2,891.60 : x
  2. Step 2: Convert to fraction form
    4,882.98/6,735.78 = 2,891.60/x
  3. Step 3: Cross multiply
    4,882.98x = 6,735.78 × 2,891.60
  4. Step 4: Simplify right side
    4,882.98x = 19,477,181.45
  5. Step 5: Solve for x
    x = 19,477,181.45/4,882.98
  6. Step 6: Final answer
    x = 3,988.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.